src/news.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2001 Hiroyuki Yamamoto
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #  include "config.h"
  22 #endif
  23
  24 #include "defs.h"
  25
  26 #include <glib.h>
  27 #include <stdio.h>
  28 #include <string.h>
  29 #include <stdlib.h>
  30 #include <dirent.h>
  31 #include <unistd.h>
  32
  33 #include "intl.h"
  34 #include "news.h"
  35 #include "nntp.h"
  36 #include "socket.h"
  37 #include "recv.h"
  38 #include "procmsg.h"
  39 #include "procheader.h"
  40 #include "folder.h"
  41 #include "session.h"
  42 #include "statusbar.h"
  43 #include "codeconv.h"
  44 #include "utils.h"
  45 #include "prefs_common.h"
  46 #include "prefs_account.h"
  47 #include "inputdialog.h"
  48 #include "alertpanel.h"
  49
  50 #define NNTP_PORT       119
  51
  52 static Session *news_session_new         (const gchar   *server,
  53                                           gushort        port,
  54                                           const gchar   *userid,
  55                                           const gchar   *passwd);
  56
  57 static gint news_get_article_cmd         (NNTPSession   *session,
  58                                           const gchar   *cmd,
  59                                           gint           num,
  60                                           gchar         *filename);
  61 static gint news_get_article             (NNTPSession   *session,
  62                                           gint           num,
  63                                           gchar         *filename);
  64 static gint news_get_header              (NNTPSession   *session,
  65                                           gint           num,
  66                                           gchar         *filename);
  67
  68 static gint news_select_group            (NNTPSession   *session,
  69                                           const gchar   *group);
  70 static GSList *news_get_uncached_articles(NNTPSession   *session,
  71                                           FolderItem    *item,
  72                                           gint           cache_last,
  73                                           gint          *rfirst,
  74                                           gint          *rlast);
  75 static MsgInfo *news_parse_xover         (const gchar   *xover_str);
  76 static gchar *news_parse_xhdr            (const gchar   *xhdr_str,
  77                                           MsgInfo       *msginfo);
  78 static GSList *news_delete_old_articles  (GSList        *alist,
  79                                           FolderItem    *item,
  80                                           gint           first);
  81 static void news_delete_all_articles     (FolderItem    *item);
  82
  83 static void news_group_list_free(GSList * list);
  84
  85
  86 static Session *news_session_new(const gchar *server, gushort port,
  87                                  const gchar *userid, const gchar *passwd)
  88 {
  89         gchar buf[NNTPBUFSIZE];
  90         NNTPSession *session;
  91         NNTPSockInfo *nntp_sock;
  92
  93         g_return_val_if_fail(server != NULL, NULL);
  94
  95         log_message(_("creating NNTP connection to %s:%d ...\n"), server, port);
  96
  97         if (userid && passwd)
  98                 nntp_sock = nntp_open_auth(server, port, buf, userid, passwd);
  99         else
 100                 nntp_sock = nntp_open(server, port, buf);
 101         if (nntp_sock == NULL)
 102                 return NULL;
 103
 104         session = g_new(NNTPSession, 1);
 105         SESSION(session)->type      = SESSION_NEWS;
 106         SESSION(session)->server    = g_strdup(server);
 107         session->nntp_sock          = nntp_sock;
 108         SESSION(session)->sock      = nntp_sock->sock;
 109         SESSION(session)->connected = TRUE;
 110         SESSION(session)->phase     = SESSION_READY;
 111         SESSION(session)->data      = NULL;
 112         session->group = NULL;
 113         session->group_list = NULL;
 114
 115         return SESSION(session);
 116 }
 117
 118 void news_session_destroy(NNTPSession *session)
 119 {
 120         nntp_close(session->nntp_sock);
 121         session->nntp_sock = NULL;
 122         SESSION(session)->sock = NULL;
 123
 124         news_group_list_free(session->group_list);
 125         session->group_list = NULL;
 126
 127         g_free(session->group);
 128 }
 129
 130 static gchar *news_query_password(const gchar *server, const gchar *user)
 131 {
 132         gchar *message;
 133         gchar *pass;
 134
 135         message = g_strdup_printf(_("Input password for %s on %s:"),
 136                                   user, server);
 137         pass = input_dialog_with_invisible(_("Input password"), message, NULL);
 138         g_free(message);
 139
 140         return pass;
 141 }
 142
 143 static Session *news_session_new_for_folder(Folder *folder)
 144 {
 145         Session *session;
 146         PrefsAccount *ac;
 147         const gchar *userid = NULL;
 148         gchar *passwd = NULL;
 149
 150         g_return_val_if_fail(folder != NULL, NULL);
 151         g_return_val_if_fail(folder->account != NULL, NULL);
 152
 153         ac = folder->account;
 154         if (ac->use_nntp_auth && ac->userid && ac->userid[0]) {
 155                 userid = ac->userid;
 156                 if (ac->passwd && ac->passwd[0])
 157                         passwd = g_strdup(ac->passwd);
 158                 else
 159                         passwd = news_query_password(ac->nntp_server, userid);
 160         }
 161
 162         session = news_session_new(ac->nntp_server,
 163                                    ac->set_nntpport ? ac->nntpport : NNTP_PORT,
 164                                    userid, passwd);
 165         g_free(passwd);
 166
 167         return session;
 168 }
 169
 170 NNTPSession *news_session_get(Folder *folder)
 171 {
 172         NNTPSession *session;
 173
 174         g_return_val_if_fail(folder != NULL, NULL);
 175         g_return_val_if_fail(folder->type == F_NEWS, NULL);
 176         g_return_val_if_fail(folder->account != NULL, NULL);
 177
 178         if (!REMOTE_FOLDER(folder)->session) {
 179                 REMOTE_FOLDER(folder)->session =
 180                         news_session_new_for_folder(folder);
 181                 statusbar_pop_all();
 182                 return NNTP_SESSION(REMOTE_FOLDER(folder)->session);
 183         }
 184
 185         session = NNTP_SESSION(REMOTE_FOLDER(folder)->session);
 186
 187         if (nntp_mode(session->nntp_sock, FALSE) != NN_SUCCESS) {
 188                 log_warning(_("NNTP connection to %s:%d has been"
 189                               " disconnected. Reconnecting...\n"),
 190                             folder->account->nntp_server,
 191                             folder->account->set_nntpport ?
 192                             folder->account->nntpport : NNTP_PORT);
 193                 session_destroy(REMOTE_FOLDER(folder)->session);
 194                 REMOTE_FOLDER(folder)->session =
 195                         news_session_new_for_folder(folder);
 196         }
 197
 198         statusbar_pop_all();
 199         return NNTP_SESSION(REMOTE_FOLDER(folder)->session);
 200 }
 201
 202 GSList *news_get_article_list(Folder *folder, FolderItem *item,
 203                               gboolean use_cache)
 204 {
 205         GSList *alist;
 206         NNTPSession *session;
 207
 208         g_return_val_if_fail(folder != NULL, NULL);
 209         g_return_val_if_fail(item != NULL, NULL);
 210         g_return_val_if_fail(folder->type == F_NEWS, NULL);
 211
 212         session = news_session_get(folder);
 213
 214         if (!session) {
 215                 alist = procmsg_read_cache(item, FALSE);
 216                 item->last_num = procmsg_get_last_num_in_cache(alist);
 217         } else if (use_cache) {
 218                 GSList *newlist;
 219                 gint cache_last;
 220                 gint first, last;
 221
 222                 alist = procmsg_read_cache(item, FALSE);
 223
 224                 cache_last = procmsg_get_last_num_in_cache(alist);
 225                 newlist = news_get_uncached_articles
 226                         (session, item, cache_last, &first, &last);
 227                 alist = news_delete_old_articles(alist, item, first);
 228
 229                 alist = g_slist_concat(alist, newlist);
 230                 item->last_num = last;
 231         } else {
 232                 gint last;
 233
 234                 alist = news_get_uncached_articles
 235                         (session, item, 0, NULL, &last);
 236                 news_delete_all_articles(item);
 237                 item->last_num = last;
 238         }
 239
 240         procmsg_set_flags(alist, item);
 241
 242         statusbar_pop_all();
 243
 244         return alist;
 245 }
 246
 247 gchar *news_fetch_msg(Folder *folder, FolderItem *item, gint num)
 248 {
 249         gchar *path, *filename;
 250         NNTPSession *session;
 251         gint ok;
 252
 253         g_return_val_if_fail(folder != NULL, NULL);
 254         g_return_val_if_fail(item != NULL, NULL);
 255
 256         path = folder_item_get_path(item);
 257         if (!is_dir_exist(path))
 258                 make_dir_hier(path);
 259         filename = g_strconcat(path, G_DIR_SEPARATOR_S, itos(num), NULL);
 260         g_free(path);
 261
 262         if (is_file_exist(filename)) {
 263                 debug_print(_("article %d has been already cached.\n"), num);
 264                 return filename;
 265         }
 266
 267         session = news_session_get(folder);
 268         if (!session) {
 269                 g_free(filename);
 270                 return NULL;
 271         }
 272
 273         ok = news_select_group(session, item->path);
 274         statusbar_pop_all();
 275         if (ok != NN_SUCCESS) {
 276                 g_warning(_("can't select group %s\n"), item->path);
 277                 g_free(filename);
 278                 return NULL;
 279         }
 280
 281         debug_print(_("getting article %d...\n"), num);
 282         ok = news_get_article(NNTP_SESSION(REMOTE_FOLDER(folder)->session),
 283                               num, filename);
 284         statusbar_pop_all();
 285         if (ok < 0) {
 286                 g_warning(_("can't read article %d\n"), num);
 287                 g_free(filename);
 288                 return NULL;
 289         }
 290
 291         return filename;
 292 }
 293
 294 void news_scan_group(Folder *folder, FolderItem *item)
 295 {
 296 }
 297
 298 static struct NNTPGroupInfo * group_info_new(gchar * name,
 299                                              gint first, gint last,
 300                                              gchar type)
 301 {
 302         struct NNTPGroupInfo * info;
 303
 304         info = g_new(struct NNTPGroupInfo, 1);
 305         if (info == NULL)
 306                 return NULL;
 307         info->name = g_strdup(name);
 308         info->first = first;
 309         info->last = last;
 310         info->type = type;
 311
 312         return info;
 313 }
 314
 315 static void group_info_free(struct NNTPGroupInfo * info)
 316 {
 317   g_free(info->name);
 318   g_free(info);
 319 }
 320
 321 static void news_group_list_free(GSList * list)
 322 {
 323   g_slist_foreach(list, (GFunc) group_info_free, NULL);
 324   g_slist_free(list);
 325 }
 326
 327 gint news_group_info_compare(struct NNTPGroupInfo * info1,
 328                              struct NNTPGroupInfo * info2)
 329 {
 330   return g_strcasecmp(info1->name, info2->name);
 331 }
 332
 333 GSList *news_get_group_list(Folder *folder)
 334 {
 335         gchar *path, *filename;
 336         FILE *fp;
 337         GSList *list = NULL;
 338         GSList *last = NULL;
 339         gchar buf[NNTPBUFSIZE];
 340         NNTPSession *session;
 341
 342         g_return_val_if_fail(folder != NULL, NULL);
 343         g_return_val_if_fail(folder->type == F_NEWS, NULL);
 344
 345         path = folder_item_get_path(FOLDER_ITEM(folder->node->data));
 346         if (!is_dir_exist(path))
 347                 make_dir_hier(path);
 348         filename = g_strconcat(path, G_DIR_SEPARATOR_S, NEWSGROUP_LIST, NULL);
 349         g_free(path);
 350
 351         session = news_session_get(folder);
 352         if (!session) {
 353                 g_free(filename);
 354                 return NULL;
 355         }
 356
 357         if (session->group_list) {
 358                 g_free(filename);
 359                 return session->group_list;
 360         }
 361
 362         if ((fp = fopen(filename, "r")) == NULL) {
 363                 if (nntp_list(session->nntp_sock) != NN_SUCCESS) {
 364                         g_free(filename);
 365                         statusbar_pop_all();
 366                         return NULL;
 367                 }
 368                 statusbar_pop_all();
 369                 if (recv_write_to_file(SESSION(session)->sock, filename) < 0) {
 370                         log_warning(_("can't retrieve newsgroup list\n"));
 371                         g_free(filename);
 372                         return NULL;
 373                 }
 374
 375                 if ((fp = fopen(filename, "r")) == NULL) {
 376                         FILE_OP_ERROR(filename, "fopen");
 377                         g_free(filename);
 378                         return NULL;
 379                 }
 380         }
 381
 382         while (fgets(buf, sizeof(buf), fp) != NULL) {
 383                 gchar * p;
 384                 gchar * cur;
 385                 gchar * name;
 386                 gint last_article;
 387                 gint first_article;
 388                 gchar type;
 389                 struct NNTPGroupInfo * info;
 390
 391                 cur = buf;
 392                 p = strchr(cur, ' ');
 393                 if (p == NULL)
 394                         continue;
 395                 * p = 0;
 396
 397                 name = cur;
 398
 399                 cur = p + 1;
 400                 p = strchr(cur, ' ');
 401                 if (p == NULL)
 402                         continue;
 403                 * p = 0;
 404                 last_article = atoi(cur);
 405
 406                 cur = p + 1;
 407                 p = strchr(cur, ' ');
 408                 if (p == NULL)
 409                         continue;
 410                 * p = 0;
 411                 first_article = atoi(cur);
 412
 413                 cur = p + 1;
 414                 type = * cur;
 415
 416                 info = group_info_new(name, first_article,
 417                                       last_article, type);
 418                 if (info == NULL)
 419                         continue;
 420
 421                 if (!last)
 422                         last = list = g_slist_append(NULL, info);
 423                 else {
 424                         last = g_slist_append(last, info);
 425                         last = last->next;
 426                 }
 427         }
 428
 429         fclose(fp);
 430         g_free(filename);
 431
 432         list = g_slist_sort(list, (GCompareFunc) news_group_info_compare);
 433
 434         session->group_list = list;
 435
 436         statusbar_pop_all();
 437
 438         return list;
 439 }
 440
 441 void news_cancel_group_list_cache(Folder *folder)
 442 {
 443         gchar *path, *filename;
 444         NNTPSession *session;
 445
 446         g_return_if_fail(folder != NULL);
 447         g_return_if_fail(folder->type == F_NEWS);
 448
 449         session = news_session_get(folder);
 450         if (!session)
 451                 return;
 452
 453         news_group_list_free(session->group_list);
 454         session->group_list = NULL;
 455
 456         path = folder_item_get_path(FOLDER_ITEM(folder->node->data));
 457         filename = g_strconcat(path, G_DIR_SEPARATOR_S, NEWSGROUP_LIST, NULL);
 458         g_free(path);
 459
 460         if (is_file_exist(filename)) {
 461                 if (remove(filename) < 0)
 462                         FILE_OP_ERROR(filename, "remove");
 463         }
 464         g_free(filename);
 465 }
 466
 467 gint news_post(Folder *folder, const gchar *file)
 468 {
 469         NNTPSession *session;
 470         FILE *fp;
 471         gint ok;
 472
 473         g_return_val_if_fail(folder != NULL, -1);
 474         g_return_val_if_fail(folder->type == F_NEWS, -1);
 475         g_return_val_if_fail(file != NULL, -1);
 476
 477         session = news_session_get(folder);
 478         if (!session) return -1;
 479
 480         if ((fp = fopen(file, "r")) == NULL) {
 481                 FILE_OP_ERROR(file, "fopen");
 482                 return -1;
 483         }
 484
 485         ok = nntp_post(session->nntp_sock, fp);
 486         if (ok != NN_SUCCESS) {
 487                 log_warning(_("can't post article.\n"));
 488                 return -1;
 489         }
 490
 491         fclose(fp);
 492
 493         statusbar_pop_all();
 494
 495         return 0;
 496 }
 497
 498 static gint news_get_article_cmd(NNTPSession *session, const gchar *cmd,
 499                                  gint num, gchar *filename)
 500 {
 501         gchar *msgid;
 502
 503         if (nntp_get_article(session->nntp_sock, cmd, num, &msgid)
 504             != NN_SUCCESS)
 505                 return -1;
 506
 507         debug_print("Message-Id = %s, num = %d\n", msgid, num);
 508         g_free(msgid);
 509
 510         if (recv_write_to_file(session->nntp_sock->sock, filename) < 0) {
 511                 log_warning(_("can't retrieve article %d\n"), num);
 512                 return -1;
 513         }
 514
 515         return 0;
 516 }
 517
 518 static gint news_get_article(NNTPSession *session, gint num, gchar *filename)
 519 {
 520         return news_get_article_cmd(session, "ARTICLE", num, filename);
 521 }
 522
 523 static gint news_get_header(NNTPSession *session, gint num, gchar *filename)
 524 {
 525         return news_get_article_cmd(session, "HEAD", num, filename);
 526 }
 527
 528 /**
 529  * news_select_group:
 530  * @session: Active NNTP session.
 531  * @group: Newsgroup name.
 532  *
 533  * Select newsgroup @group with the GROUP command if it is not already
 534  * selected in @session.
 535  *
 536  * Return value: NNTP result code.
 537  **/
 538 static gint news_select_group(NNTPSession *session, const gchar *group)
 539 {
 540         gint ok;
 541         gint num, first, last;
 542
 543         if (session->group && g_strcasecmp(session->group, group) == 0)
 544                 return NN_SUCCESS;
 545
 546         g_free(session->group);
 547         session->group = NULL;
 548
 549         ok = nntp_group(session->nntp_sock, group, &num, &first, &last);
 550         if (ok == NN_SUCCESS)
 551                 session->group = g_strdup(group);
 552
 553         return ok;
 554 }
 555
 556 static GSList *news_get_uncached_articles(NNTPSession *session,
 557                                           FolderItem *item, gint cache_last,
 558                                           gint *rfirst, gint *rlast)
 559 {
 560         gint ok;
 561         gint num = 0, first = 0, last = 0, begin = 0, end = 0;
 562         gchar buf[NNTPBUFSIZE];
 563         GSList *newlist = NULL;
 564         GSList *llast = NULL;
 565         MsgInfo *msginfo;
 566
 567         if (rfirst) *rfirst = 0;
 568         if (rlast)  *rlast  = 0;
 569
 570         g_return_val_if_fail(session != NULL, NULL);
 571         g_return_val_if_fail(item != NULL, NULL);
 572         g_return_val_if_fail(item->folder != NULL, NULL);
 573         g_return_val_if_fail(item->folder->type == F_NEWS, NULL);
 574
 575         g_free(session->group);
 576         session->group = NULL;
 577
 578         ok = nntp_group(session->nntp_sock, item->path,
 579                         &num, &first, &last);
 580         if (ok != NN_SUCCESS) {
 581                 log_warning(_("can't set group: %s\n"), item->path);
 582                 return NULL;
 583         }
 584         session->group = g_strdup(item->path);
 585
 586         /* calculate getting overview range */
 587         if (first > last) {
 588                 log_warning(_("invalid article range: %d - %d\n"),
 589                             first, last);
 590                 return NULL;
 591         }
 592         if (cache_last < first)
 593                 begin = first;
 594         else if (last < cache_last)
 595                 begin = first;
 596         else if (last == cache_last) {
 597                 debug_print(_("no new articles.\n"));
 598                 return NULL;
 599         } else
 600                 begin = cache_last + 1;
 601         end = last;
 602
 603         if (rfirst) *rfirst = first;
 604         if (rlast)  *rlast  = last;
 605
 606         if (prefs_common.max_articles > 0 &&
 607             end - begin + 1 > prefs_common.max_articles)
 608                 begin = end - prefs_common.max_articles + 1;
 609
 610         log_message(_("getting xover %d - %d in %s...\n"),
 611                     begin, end, item->path);
 612         if (nntp_xover(session->nntp_sock, begin, end) != NN_SUCCESS) {
 613                 log_warning(_("can't get xover\n"));
 614                 return NULL;
 615         }
 616
 617         for (;;) {
 618                 if (sock_gets(SESSION(session)->sock, buf, sizeof(buf)) < 0) {
 619                         log_warning(_("error occurred while getting xover.\n"));
 620                         return newlist;
 621                 }
 622
 623                 if (buf[0] == '.' && buf[1] == '\r') break;
 624
 625                 msginfo = news_parse_xover(buf);
 626                 if (!msginfo) {
 627                         log_warning(_("invalid xover line: %s\n"), buf);
 628                         continue;
 629                 }
 630
 631                 msginfo->folder = item;
 632                 msginfo->flags.perm_flags = MSG_NEW|MSG_UNREAD;
 633                 msginfo->flags.tmp_flags = MSG_NEWS;
 634                 msginfo->newsgroups = g_strdup(item->path);
 635
 636                 if (!newlist)
 637                         llast = newlist = g_slist_append(newlist, msginfo);
 638                 else {
 639                         llast = g_slist_append(llast, msginfo);
 640                         llast = llast->next;
 641                 }
 642         }
 643
 644         if (nntp_xhdr(session->nntp_sock, "to", begin, end) != NN_SUCCESS) {
 645                 log_warning(_("can't get xhdr\n"));
 646                 return newlist;
 647         }
 648
 649         llast = newlist;
 650
 651         for (;;) {
 652                 if (sock_gets(SESSION(session)->sock, buf, sizeof(buf)) < 0) {
 653                         log_warning(_("error occurred while getting xhdr.\n"));
 654                         return newlist;
 655                 }
 656
 657                 if (buf[0] == '.' && buf[1] == '\r') break;
 658                 if (!llast) {
 659                         g_warning("llast == NULL\n");
 660                         continue;
 661                 }
 662
 663                 msginfo = (MsgInfo *)llast->data;
 664                 msginfo->to = news_parse_xhdr(buf, msginfo);
 665
 666                 llast = llast->next;
 667         }
 668
 669         if (nntp_xhdr(session->nntp_sock, "cc", begin, end) != NN_SUCCESS) {
 670                 log_warning(_("can't get xhdr\n"));
 671                 return newlist;
 672         }
 673
 674         llast = newlist;
 675
 676         for (;;) {
 677                 if (sock_gets(SESSION(session)->sock, buf, sizeof(buf)) < 0) {
 678                         log_warning(_("error occurred while getting xhdr.\n"));
 679                         return newlist;
 680                 }
 681
 682                 if (buf[0] == '.' && buf[1] == '\r') break;
 683                 if (!llast) {
 684                         g_warning("llast == NULL\n");
 685                         continue;
 686                 }
 687
 688                 msginfo = (MsgInfo *)llast->data;
 689                 msginfo->cc = news_parse_xhdr(buf, msginfo);
 690
 691                 llast = llast->next;
 692         }
 693
 694         return newlist;
 695 }
 696
 697 #define PARSE_ONE_PARAM(p, srcp) \
 698 { \
 699         p = strchr(srcp, '\t'); \
 700         if (!p) return NULL; \
 701         else \
 702                 *p++ = '\0'; \
 703 }
 704
 705 static MsgInfo *news_parse_xover(const gchar *xover_str)
 706 {
 707         MsgInfo *msginfo;
 708         gchar buf[NNTPBUFSIZE];
 709         gchar *subject, *sender, *size, *line, *date, *msgid, *ref, *tmp;
 710         gchar *p;
 711         gint num, size_int, line_int;
 712         gchar *xover_buf;
 713
 714         Xalloca(xover_buf, strlen(xover_str) + 1, return NULL);
 715         strcpy(xover_buf, xover_str);
 716
 717         PARSE_ONE_PARAM(subject, xover_buf);
 718         PARSE_ONE_PARAM(sender, subject);
 719         PARSE_ONE_PARAM(date, sender);
 720         PARSE_ONE_PARAM(msgid, date);
 721         PARSE_ONE_PARAM(ref, msgid);
 722         PARSE_ONE_PARAM(size, ref);
 723         PARSE_ONE_PARAM(line, size);
 724
 725         tmp = strchr(line, '\t');
 726         if (!tmp) tmp = strchr(line, '\r');
 727         if (!tmp) tmp = strchr(line, '\n');
 728         if (tmp) *tmp = '\0';
 729
 730         num = atoi(xover_str);
 731         size_int = atoi(size);
 732         line_int = atoi(line);
 733
 734         /* set MsgInfo */
 735         msginfo = g_new0(MsgInfo, 1);
 736         msginfo->msgnum = num;
 737         msginfo->size = size_int;
 738
 739         msginfo->date = g_strdup(date);
 740         msginfo->date_t = procheader_date_parse(NULL, date, 0);
 741
 742         conv_unmime_header(buf, sizeof(buf), sender, NULL);
 743         msginfo->from = g_strdup(buf);
 744         msginfo->fromname = procheader_get_fromname(buf);
 745
 746         conv_unmime_header(buf, sizeof(buf), subject, NULL);
 747         msginfo->subject = g_strdup(buf);
 748
 749         extract_parenthesis(msgid, '<', '>');
 750         remove_space(msgid);
 751         if (*msgid != '\0')
 752                 msginfo->msgid = g_strdup(msgid);
 753
 754         msginfo->references = g_strdup(ref);
 755         eliminate_parenthesis(ref, '(', ')');
 756         if ((p = strrchr(ref, '<')) != NULL) {
 757                 extract_parenthesis(p, '<', '>');
 758                 remove_space(p);
 759                 if (*p != '\0')
 760                         msginfo->inreplyto = g_strdup(p);
 761         }
 762
 763         return msginfo;
 764 }
 765
 766 static gchar *news_parse_xhdr(const gchar *xhdr_str, MsgInfo *msginfo)
 767 {
 768         gchar *p;
 769         gchar *tmp;
 770         gint num;
 771
 772         p = strchr(xhdr_str, ' ');
 773         if (!p)
 774                 return NULL;
 775         else
 776                 p++;
 777
 778         num = atoi(xhdr_str);
 779         if (msginfo->msgnum != num) return NULL;
 780
 781         tmp = strchr(p, '\r');
 782         if (!tmp) tmp = strchr(p, '\n');
 783
 784         if (tmp)
 785                 return g_strndup(p, tmp - p);
 786         else
 787                 return g_strdup(p);
 788 }
 789
 790 static GSList *news_delete_old_articles(GSList *alist, FolderItem *item,
 791                                         gint first)
 792 {
 793         GSList *cur, *next;
 794         MsgInfo *msginfo;
 795         gchar *dir;
 796
 797         g_return_val_if_fail(item != NULL, alist);
 798         g_return_val_if_fail(item->folder != NULL, alist);
 799         g_return_val_if_fail(item->folder->type == F_NEWS, alist);
 800
 801         if (first < 2) return alist;
 802
 803         debug_print(_("Deleting cached articles 1 - %d ... "), first - 1);
 804
 805         dir = folder_item_get_path(item);
 806         remove_numbered_files(dir, 1, first - 1);
 807         g_free(dir);
 808
 809         for (cur = alist; cur != NULL; ) {
 810                 next = cur->next;
 811
 812                 msginfo = (MsgInfo *)cur->data;
 813                 if (msginfo && msginfo->msgnum < first) {
 814                         procmsg_msginfo_free(msginfo);
 815                         alist = g_slist_remove(alist, msginfo);
 816                 }
 817
 818                 cur = next;
 819         }
 820
 821         return alist;
 822 }
 823
 824 static void news_delete_all_articles(FolderItem *item)
 825 {
 826         gchar *dir;
 827
 828         g_return_if_fail(item != NULL);
 829         g_return_if_fail(item->folder != NULL);
 830         g_return_if_fail(item->folder->type == F_NEWS);
 831
 832         debug_print(_("\tDeleting all cached articles... "));
 833
 834         dir = folder_item_get_path(item);
 835         remove_all_numbered_files(dir);
 836         g_free(dir);
 837
 838         debug_print(_("done.\n"));
 839 }